Ball-bearing.



PATENTED JULY 10, 1906.

E. RIVETT. BALL BEARING, APPLIUATIUR TILED we. a. 1905.

WW m members with novel means bers of the ball-bearing, sho moved to admit the balls into t 'ton,connty of Suffolk, and

UNITED STATES PATENT OFFICE.

7 Specification of Letters Patent.

Patented July 10, 1906.

Application filed huge st 5,1995. Serial No. 272,814.

To all whom, it may concern.-

Be it known that I, EDWARD Riven, a citizen of the United States, residing at Bos- State of Massachusetts; have invented an Improvement in Ball Bearings, of which the following descriptien, in connection with the accompan 'ng drawings is a specification, like numera s on the drawings representing like parts.

The object o the present invention is to rovide a ball-bearing in which thereis a imited amount of material in the bearing for removin or inserting the balls in the ball-race, the sa- .tures of my invention being more fully hereinafter described and then pointed out in the claims. 1

In the drawings, Figure 1 is a side elevetion of the essential elements of a bali-bear ing, sho 'g my invention applied thereto.

ig. 2 is a section on the line we), 1. Fig. 3 is a detail of a portion of the two memthe key ree ball-race;

aknd 4 is a detail .view of the retainingey. 3 and 4 designate the two members of it ball-healing between which the balls 5 are confined, each of the members 3 and 4 having therein a ball-race 6, in which the balls 5 travel. I have shown in the drawings only these two bearing members of a ball-bearing,

although it will be understood that the membe! 3 ma be in the form of a shaft or a spindie and t e member 4 constitute the hub for an wheel or rotating part.

I y invention, however, has been articularly designed to permit of the quic insention of the balls in the ball-race or their re-' moval therefrom in a ball-bearing in which there is a limited amount of stock or material in the outer bearing member 4--as, for instance, where said bearing member is in the form of an annular member such as shown in v the drawings with a comparatively small cross-sectional area. a

, To admit the balls to the ball-race, I form in the inner face of the outer member 4 a groove 7, which extends to the ba1l-raee and the end 8 of which is only just soiliciently beyond the center permit the balls to be inserted. When the groove is open, as shown in F1 3, the balls 5 me be dropped into the ball-race op osite' ea: groove and when a sufiieient number of ballshave been placed in the ball-race the the of the ball-race to groove 7 is closed by a ball-retaining ke 9, whiehis of a she e to fill the groove an to come flush with the side face 10 of the hearing member 4. Saidretaining member is held in the cove by-means of retainin -serews ILWhii enter suitable holes 12 for t e hearing, member 4 and whose heads overlap the ends of the retaining member, as shown in The holes for the screws are prefer l ably countersunk, so that when the screws are in place the heads some flush with the side face 10 of the bearing member 4.

The groove 7 is preferably a dovetailed i'oove, it bein convenientl made by drilling into the si e face of the hearing member 4 at two points suiliciently separated so that when the material between said drill-holes is removed the groove is formed. in this we the sides 13 of the groove are rounded and a dovetailed groove is formed. Theedges 14 of the retaining member are shaped to fit the sides 13 of the groove. By thus making a dovetailed groove and a dovetailed ballretaini key said key can only be removed by with rawing it from the top of the roove, and the screws 11 are sufiicient to hold it in place. The inner end of the retainingkey is she ed at 15 to-eonform to and form part of the all-race in the bearini member 4. In order to properly insert t e key 9 after the bells have all been placed in position, it will be necessary to shift the balls in the raceway until said key 9 oeeu ies a space midway between two adjacent ails. By making the retsiningkey comparatively thin as by lac the groove 7 for the key in the inner ace 0 the bearing member 4 and also by extending said groove only to the bail-race, so that the bells must ail he admitted from one side, a minimum amount of material 15 removed irom the bearing member 4 in forming ii t 11 s1 '0 b ilb inven ion is 8. ca e o a earings in all;omobiie-wheeig The ball-bearings 201' these wheels are commoniy made b forcmfi into a casing or edge in the hub of t e'whee the outer bearing member 4 of the ball beering, and in order to remove the bails it has heretofore been necessary to force the beari member 4 out irons the ease or c e,- V l ith my improvement, however, the be is maybe easily inserted or withdrawn by sunply removing the retaining-key, and the presence of the groove in the outer bearing member does notappreciably weaken 1t.

cove and said member is not materially Having fully described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-- 1. In a ball-bearing. two bearing members, one of which is adapted to rotate within the other, each bearing member having a ballrace, and balls in said race between said members, one of said members having in its inner face :i ball-supply groove extending from it side time of said member parallel to the axis of rotation and leading to and terminating at the ball-race, a balhretaining key detaehably held in said roove, said hey having its inner end shape to conform to and form part of. the ball-race of the bearing member in which it is located and means on said side face for holding the ke in place.

2. In a. ball-bearing,an inner )earingmemher having an exterior ball-race, an annular bearing member surrounding the first-named bearing member, said annular bearin memher having on its interlor slde a ba lrace, balls in said race, said annular bearing having in its inner face a dovetailed ball-supply groove extending from a side face of said member parallel to the axis of rotation and leading to but terminating at the ball-race, a dovetailed ball-retaining kc detachably held in said groove, the inner en of said key bei sha ed to conform to and form part of the bal -race, and a screw enteringsald side face and holding the he in place.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD RIVETT.

Witnesses:

LOUIS (1. SMITH, MARGARET A. DUNN. 

